Crank-motion.



No. 829,735. PATENTED AUG. 28, 1906.

T. L. yRAIMSEY. CRANE MOTION.

APPLICATION FILED SEPT. 29, 1904.

Wyes I Inventor, g b ,Y

@NUDE S'iifiES ATENT '@FFEE.

'rHoMAs LEMUEL aai/Isny, or uionLEGaova, i'LLiNoisgA'ssreNoa or omarmenTo FRANK w. uooRE, or MIDDLEeRovE, ILLINOIS.

CRANKmIViOTlONt' To (1,27/ whom, tim/ty concern:

Be it known that I, THOMAS LEMUEL RAM- SEY, a citizen of ,the UnitedStates, residing at Middlegrove, in the county of Fulton and State ofIllinois, have invented a new and useful Crank-Motion, of which thefollowing is a specification.

This invention relates to devices for converting a reciprocating into arotary motion, and more specifically to devices for converting thereciprocatory mtion .of the pistonrod working in the cylinder of asteam, gas, or other engine into a rotary motion throughs the medium` ofal crank connected with a wheel mounted for rotation, the vsame beingeffectedwitllout the use of the pitman commonly employed for thispurpose and in such a manner as to avoid the possibility of what isknown as a dead-center, no matter at what point ofits movement thepiston-rod may be at rest. l

The object of the invention is to present a device of the class referredto whichv shall possess superior advantages in point of simplicity,durability, and general efficiency,

and with these and other ends in view,

which will readily appear as the nature of the invention is betterunderstood, the same consists in the improved construction and novelarrangement and combination of parts, which will be hereineftervfullydescribed, and partir-ularly pointed out in the claim.

In the accompanying drawings, Figure 1 is a side elevation illustrativeof the invention. Fig. 2 is a sectional detail view taken on the line 29 in Fig. 1. A

Corresponding parts in both figures are indicated by like characters ofreference.

Upon a suitable foundation lis mounted a base 2, supporting a cylinder3, which may represent the. cylinder of an engine driven by steam orother fluid or of any of the various `Specification of Letters Patent.

Patented. Aug. 28,1906.

in the drawings illustrated as a pair of luf-i.

beams, the upper inner webs of which afford bearings for a reciprocatoryslidelO, .which is mounted directly for reciprocation in aplane parallelto that of the piston-rod. The slide 1U carries an obliquely disposed orinclined upright 11, having a slot 12, which affords a bearing orguideway for the slidev 13, having a perforation 14, whereby it ismounted for 'i rotationupon the wrist-pin 8 ofthe wheel, said slidebeing provided in opposite sides thereof with grooves 12,engagingopposite side edges of the slot 12. right may beinclined atany'desired angle to 'the base upon which it moves', and the slottherein should be of suflicient length to amply vaccommodate the throwofthe crank or wrist pin 8.

The slotted up- In operation when the piston reciprocates it willimparta reciprocatory motion to the slide carrying the inclined upright, withwhich latter the said piston-.rod is connected by means of a rigidcoupling or connection 15 of any suitable construction. right is thusmoved, the slide 13 will move upward or downward in the inclined `slot12,`

according to the direction of the movement of the piston-rod, and arotary motion will thus When the upbe imparted tothe wheel 7 and to theshaft 6,

upon which said wheel is mounted. The slide 13, which rotatably engagesvthe wristin of the'ily-wheel, is guided and steadied ythe grooves 12,that are in constant engagement withqthe opposite edges of the slot 12,an

even'and steady motion being thus assured.

lt is obvious'that a dead-center is impossible, for the reason that whenthe piston-rod is at either end, of its movement and the wrist-pin conseuently is in axial alinement therewith the-s ide 13, engaging saidwrist-4 pin, will be about midway of the inclined slot 12, so that whenthe piston-rod starts on its -the rotation of the wheel.

This improved device, as will beiseen, is of Y it to be convenientlyadapted or applied to various kinds of motors which have been 'returnstroke there will be noimpediment to originally Constructed With apitman movement2 the change being easily and inexpensively effected,`the only requirement being the proper placing of the gibs or guide- Waysand the inclined upri htl which latter is readily connected with t episton-rod by rocatory'piston rod, a slide mounted for reciprocation inengagement with the lll-beams, an obliquely disposed upright extendingfrom said slide and having a slot, a slide sup Vported for movementinsaid slot and having y projecting from theinolined upright and havingrigid connection with thepiston-rod.

In testimony that I claim the foregoing as my ownlhave hereto affixed mysignature in the presence of two Witnesses.

y THOMAS LEMUEL RAMSEY. i

Witnesses:

C. E, COYNER, A. P. BoND.

